A new inclined guide pillar structure

Abstract

The application discloses a novel inclined guide pillar structure applied to injection molding opening and closing of an injection mold, is fixedly installed on a front mold of the injection mold and comprises an inclined guide pillar fixing base and a square inclined guide pillar. The inclined guide pillar fixing base is inserted into a specified position of the front mold and is fixed through bolts, the inner side surface of the inclined guide pillar fixing base is provided with a guide pillar mounting groove, the square inclined guide pillar is fixedly installed in the guide pillar mounting groove and protrudes from the inner side surface of the inclined guide pillar fixing base; an inclined guide pillar guide groove corresponding to the square inclined guide pillar is arranged on an injection molding slider in the injection mold, and the side of the square inclined guide pillar protruding from the inclined guide pillar fixing base is slidably installed in the corresponding inclined guide pillar guide groove. The structure is simple in design, the height of the slider is set to be high, the setting angle of the square inclined guide pillar is not limited, the running stroke of the slider is increased, the demolding of products on the mold is facilitated, the structure between the slider and the mold is relatively stable due to the square inclined guide pillar, the slider driving assembly is reduced, and the cost is greatly saved.

Description

Technical Field

[0001] This invention relates to the field of core-pulling technology for injection molds, and specifically to a novel inclined guide post structure. Background Technology

[0002] With the rapid development of the plastics industry, all kinds of tools and products used in our daily production and life, from large items like ships and automobiles to small items like screws, buttons, and the casings of various household appliances, are closely related to plastic products. Injection molds are important process equipment for producing various plastic industrial products, and they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts; specifically, it refers to injecting molten plastic under high pressure into a mold cavity composed of a moving mold and a fixed mold through an injection molding machine, and after cooling and solidification, obtaining the molded product. After the product is formed, it needs to be demolded. Usually, when the demolding slider stroke is relatively large, a hydraulic cylinder is used to drive the slider to perform the core pulling action. The movement of the slider is guided by the inclined guide post. However, due to the large slider stroke, the guide length of the inclined guide post will increase, and the space occupied by the inclined guide post in the mold will increase. Moreover, since the existing inclined guide post is fixedly installed on the rear mold and is only slidably connected to the slider through the wall opening, the guiding effect is not good. At the same time, the length of the existing inclined guide post is longer, and when the slider stroke is large, the torque problem can easily cause the inclined guide post to break. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing background technology and provide a novel inclined guide post structure.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a novel inclined guide post structure, applied to the injection opening and closing of an injection mold, fixedly installed on the front mold of the injection mold, including an inclined guide post fixing seat and a square inclined guide post. The inclined guide post fixing seat is inserted into a designated position in the front mold and fixed by bolts. The inner side of the inclined guide post fixing seat is provided with a guide post mounting groove. The square inclined guide post is fixedly installed in the guide post mounting groove and protrudes from the inner side of the inclined guide post fixing seat. The injection slider in the injection mold is provided with an inclined guide post guide groove corresponding to the square inclined guide post. The side of the square inclined guide post protruding from the inclined guide post fixing seat is slidably installed in the corresponding inclined guide post guide groove.

[0005] Furthermore, the outer side of the inclined guide post fixing seat is provided with an insert protrusion for fixing to the front mold, and the side wall of the inclined guide post fixing seat is also provided with a guide slider.

[0006] Furthermore, the square inclined guide post has a rectangular cross-section and a stepped upper end, which is integrally formed to facilitate its insertion and engagement with the guide post mounting groove.

[0007] Furthermore, the angle of the square inclined guide post is 30° to 60° with the vertical line; and the sliding stroke between the square inclined guide post and the injection slider is inversely proportional to the angle of the square inclined guide post.

[0008] Furthermore, the inclined guide post and guide groove on the injection molding slider are flared upwards at the end near the front mold.

[0009] Compared with the prior art, the present invention has the following advantages: The structure design of the present invention is simple, makes full use of the high height of the slider, and the setting angle of the square oblique guide post is not limited, which can extend its setting length, increase the slider running stroke, and facilitate the demolding of the product on the mold; and the square oblique guide post makes the structure between the slider and the mold relatively stable, and the slider can be driven to run by simply opening the front mold and driving the square oblique guide post along the oblique guide post guide groove, which greatly saves costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram illustrating the usage state of the present invention;

[0011] Figure 2 This is an internal view of the invention mounted on the front mold;

[0012] Figure 3 for Figure 2 Enlarged view of section A;

[0013] Figure 4 This is a schematic diagram of the overall structure of the novel inclined guide post of the present invention;

[0014] Figure 5 This is a schematic diagram of the inclined guide post fixing seat in this invention;

[0015] Figure 6 This is a schematic diagram of the square oblique guide post in this invention;

[0016] Figure 7 This is a cross-sectional view of the square oblique guide post in this invention;

[0017] Figure 8 This is a schematic diagram of the injection molding slider.

[0018] Figure 9 for Figure 8 Enlarged view of section B;

[0019] In the diagram: 1. Front mold, 2. Injection slider, 3. Angled guide post structure, 11. Mounting cavity, 21. Angled guide post guide groove, 31. Angled guide post fixing seat, 32. Square Angled guide post, 33. Guide slider, 34. Guide post mounting groove. Detailed Implementation

[0020] It should be noted that in the description of this invention, terms such as "upper", "lower", "left", "right", "front", "rear", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationship between the components of this invention and do not specifically mean that any component in this invention must have a specific orientation, be constructed and operated in a specific orientation, or be construed as a limitation of this invention.

[0021] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings:

[0023] like Figure 4 As shown, a novel inclined guide post structure includes an inclined guide post fixing base 31 and a square inclined guide post 32, the square inclined guide post 32 being fixedly mounted on the inclined guide post fixing base 31. Combined with... Figures 5 to 7 As shown, the inclined guide post fixing seat 31 is made into a special shape according to actual processing requirements to adapt to the installation position in the front mold. The outer side of the inclined guide post fixing seat 31 is stepped to increase its installation and fit strength. An inwardly recessed elongated guide post mounting groove 34 is provided on the inner side of the inclined guide post fixing seat 31. The square inclined guide post 32 is fixedly installed in the guide post mounting groove 34 by countersunk bolts. The cross-section of the square inclined guide post 32 is rectangular. When the square inclined guide post 32 is installed in the guide post mounting groove 34, the inner side of the square inclined guide post 32 protrudes from the guide post mounting groove 34 and forms a boss-like structure. The square inclined guide post 32 is integrally formed to improve its support and guiding strength.

[0024] During injection molding mold closing and opening, the aforementioned novel inclined guide pillar structure 3 is applied, such as... Figures 1 to 3 As shown, four symmetrically arranged mounting cavities 11 are provided at designated positions inside the front mold 1. The mounting cavities 11 are recessed inwards to fit the aforementioned inclined guide post fixing seats 31. The inclined guide post fixing seats 31 are embedded in the corresponding mounting cavities 11 and fixed with bolts. To enhance the limiting fit between the inclined guide post fixing seats 31 and the mounting cavities 11, protruding insert protrusions are provided on the outer wall of the inclined guide post fixing seats 31, and the two cooperate with each other. Simultaneously, guide sliders 33 are also installed on the outer wall of the inclined guide post fixing seats 31 to facilitate mold closing and opening. When the product injection molding is completed and the demolding process is performed, the injection slider 2 moves relative to the front mold 1 along the square inclined guide post 32, combining... Figures 8 to 9As shown, the two ends of the injection molding slider 2 are respectively provided with inclined guide post grooves 21. The square inclined guide post 32 protruding from the inclined guide post fixing seat 31 is slidably installed in the corresponding inclined guide post groove 21. The upper inclined surface and the lower inclined surface of the inclined guide post groove 21 are arranged in parallel and slide in contact with the side of the square inclined guide post 32. The upper end of the inclined guide post groove 21 is flared to facilitate the installation and subsequent disassembly of the square inclined guide post 32.

[0025] As a further preferred technical solution of the present invention, the setting angle of the square inclined guide post 32 is the same as the setting angle of the inclined guide post groove 21. Since the injection molding slider 2 itself has a relatively high setting height, the setting angle of the inclined guide post groove 21 can be selected between 30° and 60° (the angle between the inclined guide post and the vertical line). While ensuring its guiding function, it can also extend its sliding stroke. The setting length of the inclined guide post will not be shortened due to the thickness limitation of the original front mold 1. Furthermore, the sliding power of the slider can be provided by the space limit between the square inclined guide post 32 and the injection molding slider 2, reducing the original hydraulic cylinder drive method and saving costs.

[0026] In a specific implementation, to achieve a 100mm sliding stroke for the injection slider 2, if a traditional inclined guide post is used, the required length of the inclined guide post would be too long, making the overall injection mold structurally infeasible; or the base for fixing the inclined guide post on the front mold 1 would be too thick, resulting in an inclined guide post length of 125mm (when the included angle is 30°). However, by using a square inclined guide post 32, a shorter square inclined guide post 32 (at this time, the length is 80mm) can meet the 100mm sliding stroke requirement of the slider, greatly reducing the space occupied by the overall mold.

[0027] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A slanted guide post structure, used for the opening and closing of injection molds, characterized in that: The device is fixedly installed on the front mold of the injection mold, including a slanted guide post fixing seat and a square slanted guide post. The slanted guide post fixing seat is inserted into a designated position in the front mold and fixed with bolts. The inner side of the slanted guide post fixing seat is provided with a guide post mounting groove. The square slanted guide post is fixedly installed in the guide post mounting groove and protrudes from the inner side of the slanted guide post fixing seat. The injection slider in the injection mold is provided with a slanted guide post guide groove corresponding to the square slanted guide post. The side of the square slanted guide post protruding from the slanted guide post fixing seat is slidably installed in the corresponding slanted guide post guide groove.

2. The inclined guide post structure according to claim 1, characterized in that: The outer side of the inclined guide post fixing seat is provided with an insert protrusion for fixing to the front mold limit, and the side wall of the inclined guide post fixing seat is also provided with a guide slider.

3. The inclined guide post structure according to claim 1, characterized in that: The square inclined guide post has a rectangular cross-section and a stepped upper end. It is integrally formed to facilitate its insertion and engagement with the guide post mounting groove.

4. The inclined guide post structure according to claim 1, characterized in that: The angle of the square inclined guide post is 30° to 60° with the vertical line; and the sliding stroke between the square inclined guide post and the injection slider is inversely proportional to the angle of the square inclined guide post.

5. The inclined guide post structure according to claim 1, characterized in that: The inclined guide post and guide groove on the injection molding slider are flared upwards at the end near the front mold.

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